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PartsTable / COMPONENT / 3RG0728
3RG0728 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The RETAINER,PACKING is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, peripheral_diameter: 1.3358 INCHES MINIMUM AND 1.3458 INCHES MAXIMUM IN, center_hole_diameter: 1.010 INCHES MINIMUM AND 1.012 INCHES MAXIMUM IN, cross-sectional_height: 0.281 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-528-2858, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
3RG0728
NSN: 5330-00-528-2858
FSC: 5330
CAGE: 62265 — VOLVO TRUCKS NORTH AMERICA, INC. DBA (FOREIGN PARENT IS VOLVO LASTVAGNAR AB, GOTEBORG, SWEDEN.) (USA)
SPECIFICATIONS
materialSTEEL OVERALL
peripheral_diameter1.3358 INCHES MINIMUM AND 1.3458 INCHES MAXIMUM IN
center_hole_diameter1.010 INCHES MINIMUM AND 1.012 INCHES MAXIMUM IN
cross-sectional_height0.281 INCHES NOMINAL IN
cross-sectional_shape_styleU
NSN5330-00-528-2858
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3RG0728 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
MATERIAL: STEEL OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: U
•
CENTER HOLE DIAMETER: 1.010 INCHES MINIMUM AND 1.012 INCHES MAXIMUM IN
•
PERIPHERAL DIAMETER: 1.3358 INCHES MINIMUM AND 1.3458 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.281 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OVERALL
CROSS-SECTIONAL SHAPE STYLEU
CENTER HOLE DIAMETER1.010 INCHES MINIMUM AND 1.012 INCHES MAXIMUM IN
PERIPHERAL DIAMETER1.3358 INCHES MINIMUM AND 1.3458 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.281 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
MT897AQS4Interchangeable
interchangeable cross-reference
interchangeable
A7840-1Interchangeable
interchangeable cross-reference
interchangeable
6525-1Interchangeable
interchangeable cross-reference
interchangeable
452322C1Interchangeable
interchangeable cross-reference
interchangeable
201929Interchangeable
interchangeable cross-reference
interchangeable
27997Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3RG0728?
3RG0728 is a RETAINER,PACKING.
What parts can replace 3RG0728?
There are 17 known substitutes for 3RG0728: MT897AQS4, A7840-1, 6525-1 and 14 more. Substitute compatibility should be verified for your specific system.
Is 3RG0728 still available?
3RG0728 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026